Building ventilator having air inlets and outlets



Nov. 29, 1949 R. E. BLAKE ET AL 2,489,515

BUILDING VENTILATOR HAVING AIR INLETS A ND OUTLETS Filed Oct. 9, 1946 2Sheets-Sheet l /==F. Q 1 i v \o L 6 i h Inventors may Zfflhiie {ran eamiienar ama-s' Attorneys R. E. BLAKE EI'AL vNov. 29, 1949 B UILDINGVENTILATOR HAVING AIR lNLETS AND OUTLETS Filed 0d. 9, 1946 2Sheets-Sheet 2 N k M m [III] I urea/ton! .JZoera" .Z! Zia/ta v feed (ran0 M N ms wferLf'k amas' a Attorneys Patented Nov. 29, 1949 UNITED STATESPATENT OFFICE BUILDING VENTILATOR HAVING AIR INLETS AND OUTLETSApplication October 9, 1946, Serial No. 702,322

5 Claims.

The instant invention relates to certain new and useful improvements inventilating devices and apparatuses such as are used for ventilating andde-humidifying in buildings such, for example, as homes and the like,but is primarily adapted to be used in warehouses, garages, barns,chicken and hog houses, corn cribs, and the like.

By way of introduction, it is to be pointed out that the inventionherein disclosed and claimed appertains, in particular, to a similarlyconstructed and functioning ventilator covered in our copendingapplication, Serial No. 574.382, filed on January 24, 1945, now Patent2,433,544. More specifically, the improvements have to do with anauxiliary air intake arrangement forming a part of a conduit, whichconduit is divided into coacting ducts, one for purposes of picking upand delivering atmospheric air into the barn or other enclosure, and theother of which is adapted to suck the air out of the enclosure space andto carry it, under pressure, to the exterior of the enclosure.

Being an improvement upon the structure in the copending application,the structure utilized bears certain basic resemblances thereto in thatwe utilize a conduit which is expressly made in a manner to suitablyhandle the moist, foul air discharge, this being governed by screenedintake openings in one duct of the conduit, the latter duct having amotor-driven fan unit located therein and suitably sized to handle themovement of air necessary.

Stated with greater particularity, we have evolved and produced a simpleand expedient wooden, or equivalent conduit arrangement which spans theupper space in the enclosure at a point below the ceiling and whichopens through one end of the enclosure or building for purposes oftaking in atmospheric air, and opens through another end of the'buildingat its opposite end for purposes of scavenging the air, whereby to setup a suitablecirculation to satisfactorily achieve the ends sought.

Other objects, features and advantages of the invention will become morereadily apparent from the following description and the accompanyingillustrative. drawings.

In the drawings, wherein like numerals are employed to designate likeviews:

Figure l is a perspective view ofa barn, building or other enclosureprovided with ventilating means constructed in accordance with theprinciples of the present invention.

Figure 2 is a central longitudinal sectional view of the same structure,this to bring out the details of construction and the arrangement ofsuch details.

Figures 3 and 4 are transverse sectional views parts throughout thetaken on the planes of the lines 3--3 and 4-4, respectively: of Figure2.

By way of further explanation, it is to be pointed out that theinvention is applicable to any space in which the same might besatisfactorily employed for de-humidifying and ventilating purposes. Inthe drawings, it is sufficient to simply show what may be called abuilding or perhaps a barn A, with parallel side walls B-G, end wallsD--E, and roof F. Considered as a unit, the invention is, broadly, awooden or equivalent conduit 6. The over-all length of the conduitcorresponds to the length of the space in which it is located. In theinstant situation, it is shown positioned in the upper area of a barnjust beneath the ceiling. As brought out in Figure 4, the conduitcomprises top and bottom boards 1 and 8 and side boards 9 and I0, thesebeing secured together in box-like relationship, and reinforcing stripsof wood or the like ll being arranged for assembling and securing theparts together. A central partition [2 serves to define upper and lowermain and auxiliary ducts l3 and I4, respectively. Observing the ducts,it will be noted that the main duct is closed at the righthand end, asindicated at [5, and at the opposite end is enlarged and flared intofunnel-shaped form, as at It. Here it is provided with an extensionsleeve I 1 whose discharge end extends through an opening in the endwall D, as shown in Figure 2, and is flanged and secured in place as atI8. This sleeve serves as an adapter housing for a stand or bracket H!which serves to support a suitable electric motor 20 for driving asuction or exhaust fan 2|. The fan is located within the confines of thesleeve and the outer end of the sleeve is provided with freely hingedlouvers '22. These louvers are normally closed. When, however, the fanis in operation, the louvers are swung to open position and theaccumulated air and moisture in the duct or space I3 is scavenged anddischarged into the atmosphere on the outside of the building. It willbe noted that the auxiliary air intake duct is somewhat shorter inlength than the main duct [3,

that it opens through the wall E at the righthand end, where it isprovided with an intake hood of downturned visor-like form', asindicated at 22. This auxiliary duct I4 is closed at the left-hand end,as indicated at 23. Also, this duct is provided with air intake holes orports 24 covered by suitable screens 25. The other or main duct I3 isprovided with intake openings 26 covered by suitable screens 21.

In operation, it is obvious that the suction created Within the space ofthe barn produces a pull on the screened intake ports 24. Thus, air issucked from the exterior of the barn, as shown by the arrows inFigure 1. The incoming air escapes through the screened openings 24 andselection and arrangement of details which go to make up such conduit.

In view of the foregoing description taken in conjunction with theaccompanying drawings, it

is believed that a clear understanding of the construction, operationand advantages of the device will be quite apparent to those skilled inthis art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though we have herein shownand described a preferred embodim'entof our invention that the same issusceptible to certain changes fully comprehended by the spirit of theinvention as herein described and within the scope of the appendedclaims.

We claim:

1. In a structure of the class described, in combination, a buildingconstruction defining a room, storage or equivalent space, ahorizontally arranged conduit open at opposite ends and having said endsin communication with openings in opposite end walls of the buildingconstruction, a partition in and extending longitudinally of saidconduit and dividing the latter into separate intake and exhaustpassages, the latter having individual screened openings, the inlet endof the air intake passage being provided with a downturned hood-likeadapter located exteriorly of said building construction, the dischargeend or the exhaust passage being enlarged and provided with a sleevehaving pressure-opened normally-closed louvers therein, and an electricmotor driven fan mounted in said sleeve, whereby to create a suctionwithin said space, to suck foul and moist air from said space and toexhaust same to the atmosphere and to create sufiicient suction on thescreened openings in the intake passage to facilitate the delivery ofair into the latter.

2. Ventilating and de-hum'idifying means for Warehouses, barns and thelike comprising, in

combination, a building embodying a room, storage or equivalent spaceand including a ceiling, a horizontally situated conduit supported foruse in said space close to, but spaced from, said ceiling and having itsopposite ends open and opening through opposite end walls of saidbuilding construction, a partition in and extending longitudinally ofsaid conduit and dividing the latter into a lower fresh-air intake anddistributing passage, and an upper foul air exhausting passage, theintake passage being closed at its inner end and of a cross-section lessthan the crosssection of the exhausting passage, the inlet end of saidair intake passage being provided with a downturned air intake hood, thelatter located exteriorly of the adjacent building wall, the dischargeend of the exhausting passage being gradually enlarged in a directiontoward the adjacent building wall, a flanged sleeve fitted into anopening in the last named wall and in communicative connection with theadjacent enlarged end of said exhausting passage, an electric motordriven fan mounted in said sleeve, the underside of said air intakepassage being provided with longitudinally spaced ports and individualscreens covering said ports, the top side of said exhausting passagebeing also provided with ports covered by individual screens.

3. The structure specified in claim 2, together with louvers mounted inthe discharge end of said sleeve at a point outwardly of the fan, saidlouvers being closed when the fan is still, and automatically openedwhen the fan is in operation.

4. A room space ventilator of the type herein shown and describedcomprising a main conduit embodying top, bottom and side walls, closedat one end, enlarged, flared and open at the opposite end, said top wallbeing provided with screened openings, an auxiliary conduit attached toand located in alignment beneath the bottom wall of said main conduit,said auxiliary conduit being smaller in cross-section and area than themain conduit, closed at its inner end and open at its outer end, theclosed inner end being spaced inwardlyirom the flared open end of themain conduit, the bottom of said auxiliary conduit having screened airinlet openings, a down-turned air intake hood attached to the intake endof said auxiliary conduit, said hood being open at its bottom.

5. A room space ventilator of the type herein shown and describedcomprising a main conduit embodying top, bottom and side walls, closedat one end, enlarged, flared and open at the opposite end, said top wallbeing provided with screened openings, an auxiliary conduit attached toand located in alignment beneath the bottom wall of said m'ain conduit,said auxiliary conduit being smaller in cross-section and area than themain conduit, closed at its inner end and open at its outer end, theclosed inner end being spaced inwardly from the fiared open end of themain conduit, the bottom of said auxiliary conduit having screened airinlet openings, a downturned air intake hood attached to the intake endof said auxiliary conduit, said hood being open at its bottom, a flangedsleeve adapted to be fitted into an opening in a building wall, theinner end of said sleeve bein connected to the discharge end of saidmain conduit, the outer end portion of said sleeve being provided withgravity closed, pressure opened louvers, a stand mounted in said sleeve,a motor mounted on said stand, and a fan operatively connected with themotor and located between the motor and the louvers.

ROBERT E. BLAKE. PAUL GRANGE. WALTER L. THOMAS.

REFERENCES CITED The following references are of record'in the ifile ofthis patent:

UNITED STATES PATENTS

